Using your asthma medicine inhaler and device properly is vital to make sure the medicine gets to your lungs where it is needed. This is true no matter what type of inhaler or device you are using. 

Make sure you are using your inhaler correctly here.

It is extra important to use a spacer if you use a metered-dose inhaler device (puffer), as this will also reduce the chance of any side-effects.

All medicines have possible side effects, but not everybody will experience them. When you are recommended a medicine, it’s important to ask questions about side effects and what they mean for you.  

While most side effects are mild, some medicines do pose the chance of more serious reactions. Tell your doctor or pharmacist if you notice any of the following or if they worry you. Possible side effects from the above medicines are uncommon but may include: